Segment Reporting and Information about Geographic Areas - Schedule of Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived Assets | $ 41,943 | $ 40,760 |
| United States | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived Assets | 33,234 | 32,461 |
| Germany | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived Assets | 4,467 | 4,175 |
| Other international | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived Assets | $ 4,242 | $ 4,124 |